Triumph1974
Well Known Member
Hi Everyone,
Just wanted to report out that after installing a cowl flap from Anit-Splat, I have been able to keep my 90 degree day climb out CHT temps at less than 395 degrees.
I have a good baffle seal (no light coming through with the spotlight test) but would have to lower the nose and reduce climbs to around 350 ftm to keep temps in from getting above 415 degrees on hot days.
One possible recommendation for those considering the cowl flap option to lower CHTs - you may want to install a regular sized switch if you have the room vs. the little micro switch that comes with the kit....it is just hard to see and work with when soldering wires.
We don't have many 90 degree plus days any longer, so I was not able to get a detailed set of test data in since installing the cowl in early Aug, but for the non scientific test flights I have done, I am happy with the CHT temp reductions using the cowl flap. I installed it on the passenger side of the cowl.
Paul
RV7A, 3 blade Catto/0360
Just wanted to report out that after installing a cowl flap from Anit-Splat, I have been able to keep my 90 degree day climb out CHT temps at less than 395 degrees.
I have a good baffle seal (no light coming through with the spotlight test) but would have to lower the nose and reduce climbs to around 350 ftm to keep temps in from getting above 415 degrees on hot days.
One possible recommendation for those considering the cowl flap option to lower CHTs - you may want to install a regular sized switch if you have the room vs. the little micro switch that comes with the kit....it is just hard to see and work with when soldering wires.
We don't have many 90 degree plus days any longer, so I was not able to get a detailed set of test data in since installing the cowl in early Aug, but for the non scientific test flights I have done, I am happy with the CHT temp reductions using the cowl flap. I installed it on the passenger side of the cowl.
Paul
RV7A, 3 blade Catto/0360